Physician profile
Ka U Chan
NPI 1043500895
$4,739.51
in general payments reported to CMS, 2019-2025
14 companies · $1,498 in 2025
The $1,498 reported for 2025 was more than what 88% of Psychiatric/Mental Health (Nurse Practitioner) providers received nationally (typical 2025 total: $257).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2021: $115 · 2022: $260 · 2023: $1,112 · 2024: $1,754 · 2025: $1,498.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $4,359 · Education: $5.45.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $4,358.79 |
| Education | $5.45 |
Payment-type detail covers 2023-2025; earlier years are included in totals but not broken out here.
Who reported paying
General payments only, as reported to CMS. Product names cover 2023-2025.
| Company | General payments | Years | Top products |
|---|---|---|---|
| Teva Pharmaceuticals USA, INC. | $728.97 | 2023-2025 | Austedo Xr, Uzedy |
| Janssen Pharmaceuticals, INC | $686.66 | 2022-2025 | Invega Sustenna, Invega Trinza, Invega |
| Iti, INC. (D/B/A Intra-Cellular Therapies, INC.) | $659.85 | 2022-2025 | Caplyta |
| Alkermes, INC. | $654.36 | 2021-2025 | Lybalvi, Aristada, Aristada Initio |
| Otsuka America Pharmaceutical, INC. | $527.76 | 2023-2025 | Abilify Asimtufii, Rexulti, Abilify Maintena |
| E.R. Squibb & Sons, L.L.C. | $454.35 | 2024-2025 | Cobenfy |
| Axsome Therapeutics, INC. | $378.05 | 2023-2025 | Auvelity |
| Esperion Therapeutics, INC. | $201.82 | 2024-2025 | Nexletol |
| Neurocrine Biosciences, INC. | $187.00 | 2023 | Ingrezza |
| Abbvie INC. | $99.94 | 2025 | |
| Indivior INC. | $95.32 | 2022-2023 | Perseris |
| Sunovion Pharmaceuticals INC. | $31.16 | 2022 | |
| Supernus Pharmaceuticals, INC. | $20.29 | 2023 | Qelbree |
| Eisai INC. | $13.98 | 2024 |
Drugs and devices associated with these payments
CMS records which products a payment was associated with, not how the money was allocated. Association is not allocation: one payment can be associated with several products, and a product listing does not mean the payment was made because of that product. Product detail covers 2023-2025.
If you want to bring it up
Most clinicians are glad to talk about this. A respectful way in:
- "I saw Ka Chan listed in the CMS Open Payments database. Can you tell me about your work with those companies?"
- "Is there a generic or alternative to this medication, and would it work as well for me?"
- "What made you choose this particular treatment for my situation?"
These are normal questions. A good clinician will welcome them.
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Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Drug and device detail covers 2023-2025.